package campus.util;

import java.util.Properties;
  import javax.mail.Message;
  import javax.mail.MessagingException;
  import javax.mail.Session;
  import javax.mail.Transport;
  import javax.mail.internet.AddressException;
  import javax.mail.internet.InternetAddress;
  import javax.mail.internet.MimeMessage;
public class SendQQMailUtil {

     public static void main(String[] args) throws AddressException,MessagingException {
         Properties properties = new Properties();
         properties.put("mail.transport.protocol", "smtp");// 连接协议
         properties.put("mail.smtp.host", "smtp.qq.com");// 主机名
         properties.put("mail.smtp.port", 465);// 端口号
         properties.put("mail.smtp.auth", "true");
         properties.put("mail.smtp.ssl.enable", "true");// 设置是否使用ssl安全连接 ---一般都使用
         properties.put("mail.debug", "true");// 设置是否显示debug信息 true 会在控制台显示相关信息
         // 得到回话对象
         Session session = Session.getInstance(properties);
         // 获取邮件对象
         Message message = new MimeMessage(session);
         // 设置发件人邮箱地址
         message.setFrom(new InternetAddress("2457422531@qq.com"));
         // 设置收件人邮箱地址
//         message.setRecipients(Message.RecipientType.TO, new InternetAddress[]{new InternetAddress("2457422531@qq.com"),new InternetAddress("xxx@qq.com"),new InternetAddress("xxx@qq.com")});
         message.setRecipient(Message.RecipientType.TO, new InternetAddress("2457422531@qq.com"));//一个收件人
         // 设置邮件标题
         message.setSubject("随机验证码！！！");
         //1.定义变量保存生成后的验证码字符串
         String code = "";
         //2.生成验证码
         String a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";//随机生成的字符范围(0-9,a-z,A-Z)
         //生成验证码的位数(这里是4位)
         for (int i = 0; i < 4; i++) {
             int index = (int) (Math.random() * 62);//会产生一个[0,62)的数，不包含小数
             char b = a.charAt(index);
             code = code + b;
         }
         // 设置邮件内容
         message.setText(code);
         // 得到邮差对象
         Transport transport = session.getTransport();
//          连接自己的邮箱账户
         transport.connect("2457422531@qq.com", "vvemgxhjxgokecgd");// 密码为QQ邮箱开通的stmp服务后得到的客户端授权码
         // 发送邮件
         transport.sendMessage(message, message.getAllRecipients());
         transport.close();
     }
 }
